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An in-situ XANES investigation of the interactions between iron, manganese and antimony in silicate melts. / Bidegaray, Anne Isabelle; Ceglia, Andrea; Cicconi, Maria Rita; Pham, Van Thai; Crabbé, Amandine; Mernissi Cherigui, El Amine; Nys, Karin; Terryn, Herman; Neuville, Daniel R.; Godet, Stéphane.

In: Journal of Non-Crystalline Solids, Vol. 502, 15.12.2018, p. 227-235.

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@article{7a3b6e14746a4f36bfe83269ab43235e,
title = "An in-situ XANES investigation of the interactions between iron, manganese and antimony in silicate melts",
abstract = "The analysis of iron, manganese and antimony in silicate glass is of great interest in chemistry, materials science, earth sciences and archaeological sciences. Yet, conclusions from different fields appear to be contradictory and many questions about redox reactions in glass remain. The purpose of this study is thus to discuss whether and how these multivalent elements interact in glass. Soda-lime silicate melts containing iron along with manganese and/or antimony have been analysed at different high temperatures under argon atmosphere. Using in-situ XANES at the Fe K-edge, redox thermodynamics, kinetics and diffusivities have been assessed for the different compositions. The data obtained show that antimony is more efficient at oxidising iron compared to manganese at all temperatures. The oxidising power trend would thus be Sb > Sb + Mn > Mn. Furthermore, hypotheses on the formation of Fe-Mn complexes are also reported in glasses with stoichiometric proportions of iron and manganese. Based on the determination of redox diffusivities, it appears that presence of other multivalent elements does not significantly affect the iron redox mechanisms and that diffusivity is essentially controlled by the mobility of calcium.",
keywords = "in-situ XANES, Redox reactions, Soda-lime silicate melts, Transition elements",
author = "Bidegaray, {Anne Isabelle} and Andrea Ceglia and Cicconi, {Maria Rita} and Pham, {Van Thai} and Amandine Crabb{\'e} and {Mernissi Cherigui}, {El Amine} and Karin Nys and Herman Terryn and Neuville, {Daniel R.} and St{\'e}phane Godet",
year = "2018",
month = "12",
day = "15",
doi = "10.1016/j.jnoncrysol.2018.09.015",
language = "English",
volume = "502",
pages = "227--235",
journal = "J. Non-Cryst. Solids",
issn = "0022-3093",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - An in-situ XANES investigation of the interactions between iron, manganese and antimony in silicate melts

AU - Bidegaray, Anne Isabelle

AU - Ceglia, Andrea

AU - Cicconi, Maria Rita

AU - Pham, Van Thai

AU - Crabbé, Amandine

AU - Mernissi Cherigui, El Amine

AU - Nys, Karin

AU - Terryn, Herman

AU - Neuville, Daniel R.

AU - Godet, Stéphane

PY - 2018/12/15

Y1 - 2018/12/15

N2 - The analysis of iron, manganese and antimony in silicate glass is of great interest in chemistry, materials science, earth sciences and archaeological sciences. Yet, conclusions from different fields appear to be contradictory and many questions about redox reactions in glass remain. The purpose of this study is thus to discuss whether and how these multivalent elements interact in glass. Soda-lime silicate melts containing iron along with manganese and/or antimony have been analysed at different high temperatures under argon atmosphere. Using in-situ XANES at the Fe K-edge, redox thermodynamics, kinetics and diffusivities have been assessed for the different compositions. The data obtained show that antimony is more efficient at oxidising iron compared to manganese at all temperatures. The oxidising power trend would thus be Sb > Sb + Mn > Mn. Furthermore, hypotheses on the formation of Fe-Mn complexes are also reported in glasses with stoichiometric proportions of iron and manganese. Based on the determination of redox diffusivities, it appears that presence of other multivalent elements does not significantly affect the iron redox mechanisms and that diffusivity is essentially controlled by the mobility of calcium.

AB - The analysis of iron, manganese and antimony in silicate glass is of great interest in chemistry, materials science, earth sciences and archaeological sciences. Yet, conclusions from different fields appear to be contradictory and many questions about redox reactions in glass remain. The purpose of this study is thus to discuss whether and how these multivalent elements interact in glass. Soda-lime silicate melts containing iron along with manganese and/or antimony have been analysed at different high temperatures under argon atmosphere. Using in-situ XANES at the Fe K-edge, redox thermodynamics, kinetics and diffusivities have been assessed for the different compositions. The data obtained show that antimony is more efficient at oxidising iron compared to manganese at all temperatures. The oxidising power trend would thus be Sb > Sb + Mn > Mn. Furthermore, hypotheses on the formation of Fe-Mn complexes are also reported in glasses with stoichiometric proportions of iron and manganese. Based on the determination of redox diffusivities, it appears that presence of other multivalent elements does not significantly affect the iron redox mechanisms and that diffusivity is essentially controlled by the mobility of calcium.

KW - in-situ XANES

KW - Redox reactions

KW - Soda-lime silicate melts

KW - Transition elements

UR - http://www.scopus.com/inward/record.url?scp=85053840351&partnerID=8YFLogxK

U2 - 10.1016/j.jnoncrysol.2018.09.015

DO - 10.1016/j.jnoncrysol.2018.09.015

M3 - Article

AN - SCOPUS:85053840351

VL - 502

SP - 227

EP - 235

JO - J. Non-Cryst. Solids

JF - J. Non-Cryst. Solids

SN - 0022-3093

ER -

ID: 40443209